Lower Limb Biomechanical Analysis of Healthy Participants

10.3791/60720 ◽  
2020 ◽  
Author(s):  
Shayan Bahadori ◽  
Thomas W. Wainwright
Keyword(s):  
Lower Limb ◽  
Biomechanical Analysis ◽  
Healthy Participants

scholarly journals Can the use of proprioceptive knee braces have implications in the management of osteoarthritic knees: An exploratory study

2018 ◽  
Vol 43 (2) ◽  
pp. 140-147 ◽  
Author(s):  
Tariq A Kwaees ◽  
Jim Richards ◽  
Gill Rawlinson ◽  
Charalambos Panayiotou Charalambous ◽  
Ambreen Chohan
Keyword(s):  
Angular Velocity ◽  
Knee Osteoarthritis ◽  
Internal Rotation ◽  
Lower Limb ◽  
Knee Injury ◽  
Neuromuscular Control ◽  
Outcome Score ◽  
Knee Braces ◽  
Step Down ◽  
Healthy Participants

Background: Use of proprioceptive knee braces to control symptomology by altering neuromuscular control mechanisms has been shown in patellofemoral pain. Although their potential in patients with knee osteoarthritis is vast, little research has examined their efficacy. Objectives: This study examines the effect of a proprioceptive knee brace on lower limb kinematics and kinetics in healthy participants and in participants with OA. Methods: Thirteen healthy participants were asked to perform a 10-cm step-down task with and without a proprioceptive brace. Data were collected using a 10-camera Qualisys system. Individuals with osteoarthritis completed the Knee injury and Osteoarthritis Outcome Score before and after 4 weeks of intervention. Results: During step-down reductions in knee maximum internal rotation, transverse range of movement, transverse plane angular velocity and maximum internal rotation angular velocity was seen. Ankle plantar flexion and inversion angular velocity decreased while inversion and maximum supination angular velocity increased. Improvements in Knee injury and Osteoarthritis Outcome Score were noted across all parameters with brace use. Conclusion: Positive changes in kinematic variables in multiple planes can be achieved with proprioceptive bracing alongside improved patient outcome. These changes occur at the knee but analysis of other weight bearing joints should not be overlooked in future studies. This study supports the concept of neuromuscular reinforcement and re-education through proprioceptive bracing and its application in the management in knee osteoarthritis. Clinical relevance Proprioception can alter symptoms and biomechanics embraced and adjacent lower limb joints. The results of this study highlights the potential uses of non-mechanical bracing in the treatment of osteoarthritis and other potential to bridge the osteoarthritis treatment gap. Furthermore, large-scale research is needed to match disease subset to brace type.

scholarly journals Reliability and Agreement of 3D Trunk and Lower Extremity Movement Analysis by Means of Inertial Sensor Technology for Unipodal and Bipodal Tasks

Sensors ◽  
2019 ◽  
Vol 19 (1) ◽  
pp. 141 ◽  
Author(s):  
Rob Van der Straaten ◽  
Amber K. B. D. Bruijnes ◽  
Benedicte Vanwanseele ◽  
Ilse Jonkers ◽  
Liesbet De Baets ◽  
...  
Keyword(s):  
Lower Limb ◽  
Sagittal Plane ◽  
Inertial Sensor ◽  
Movement Analysis ◽  
Sensor Technology ◽  
Inertial Measurement ◽  
Sit To Stand ◽  
Movement Strategies ◽  
Measurement Units ◽  
Healthy Participants

This study evaluates the reliability and agreement of the 3D range of motion (ROM) of trunk and lower limb joints, measured by inertial measurement units (MVN BIOMECH Awinda, Xsens Technologies), during a single leg squat (SLS) and sit to stand (STS) task. Furthermore, distinction was made between movement phases, to discuss the reliability and agreement for different phases of both movement tasks. Twenty healthy participants were measured on two testing days. On day one, measurements were conducted by two operators to determine the within-session and between-operator reliability and agreement. On day two, measurements were conducted by the same operator, to determine the between-session reliability and agreement. The SLS task had lower within-session reliability and agreement compared with between-session and between-operator reliability and agreement. The reliability and agreement of the hip, knee, and ankle ROM in the sagittal plane were good for both phases of the SLS task. For both phases of STS task, within-session reliability and agreement were good, and between-session and between-operator reliability and agreement were lower in all planes. As both tasks are physically demanding, differences may be explained by inconsistent movement strategies. These results show that inertial sensor systems show promise for use in further research to investigate (mal)adaptive movement strategies.

scholarly journals A Biomechanical Analysis of Lower Limb Movement on the Backcourt Forehand Clear Stroke among Badminton Players of Different Levels

2019 ◽  
Vol 2019 ◽  
pp. 1-8 ◽  
Author(s):  
Xiaoxue Zhao ◽  
Shudong Li
Keyword(s):  
Lower Limb ◽  
Biomechanical Analysis ◽  
Foot Pressure ◽  
First Metatarsal ◽  
Movement Characteristics ◽  
Internal Rotation Angle ◽  
Ankle Strength ◽  
Limb Kinematics ◽  
Lower Limb Movement ◽  
Lower Limb Kinematics

Most of the previous studies have been focused on the upper limb biomechanical characteristic in the clear stroke among different level badminton players, but research on the lower limb is limited. The aim of this study is to explore the lower limb kinematics and foot pressure in the backcourt forehand clear stroke among badminton players to give theoretical reference in teaching and answer the questions occurring in the process of learning the actions. Ten professional badminton players (PP) and ten amateur players (AP) were recruited in this study. Plantar pressure analyses indicated that both the PP and the AP were in contact with the ground over the forefoot without the midfoot and heel. The work suggests that when designing professional badminton sports shoes, the designers should focus on strengthening footwear resistance in the metatarsal and forefoot area, especially the first metatarsal area, to meet the requirement of the movement demand and take the badminton movement characteristics in different regions of the design. The peak ankle dorsiflexion, eversion, and internal rotation angle levels of the AP are lower than those of the PP. It is important for the AP group to enhance their ankle strength to prevent injury and improve performance.

Experimental investigation and biomechanical analysis of lower limb movements for clutch pedal operation

Ergonomics ◽  
2000 ◽  
Vol 43 (9) ◽  
pp. 1405-1429 ◽  
Author(s):  
X. Wang ◽  
J. P. Verriest ◽  
B. Lebreton-Gadegbeku ◽  
Y. Tessier ◽  
J. Trasbot
Keyword(s):  
Experimental Investigation ◽  
Lower Limb ◽  
Biomechanical Analysis ◽  
Limb Movements ◽  
Clutch Pedal

scholarly journals Comparison of different symmetry indices for the quantification of dynamic joint angles

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Hannah Lena Siebers ◽  
Waleed Alrawashdeh ◽  
Marcel Betsch ◽  
Filippo Migliorini ◽  
Frank Hildebrand ◽  
...  
Keyword(s):  
Reference Values ◽  
Lower Limb ◽  
Healthy Individuals ◽  
Joint Angles ◽  
Gait Symmetry ◽  
Rehabilitation Process ◽  
Symmetry Index ◽  
Measurement Models ◽  
Symmetry Function ◽  
Healthy Participants

Abstract Background Symmetry is a sign of physiological and healthy movements, as pathologies are often described by increased asymmetries. Nevertheless, based on precisely measured data, even healthy individuals will show small asymmetries in their movements. However, so far there do not exist commonly accepted methods and reference values for gait symmetry in a healthy collective. Therefore, a comparison and presentation of reference values calculated by 3 different methods of symmetry indices for lower limb joint angles during walking, ascending, and descending stairs were shown. Methods Thirty-five healthy participants were analyzed during walking, ascending, and descending stairs with the help of the inertial measurement system MyoMotion. Using the normalized symmetry index (SInorm), the symmetry index (SI) as the integral of the symmetry function, and another normalized symmetry index (NSI), the symmetry of joint angles was evaluated. For statistical evaluation of differences, repeated measurement models and Bland–Altman-Plots were used. Results Apart from a bias between the symmetry indices, they were comparable in the predefined limits of 5%. For all parameters, significantly higher asymmetry was found for ankle dorsi/-plantarflexion, compared with the hip and knee flexion. Moreover, the interaction effect of the joint and movement factors was significant, with an increased asymmetry of the hip and knee during descending stairs greater than while ascending stairs or walking, but a reduced symmetry of the ankle during walking when compared to descending. The movement only showed significant effects when analyzing the SInorm. Conclusion Even for healthy individuals, small asymmetries of movements were found and presented as reference values using 3 different symmetry indices for dynamic lower limb joint angles during 3 different movements. For the quantification of symmetrical movements differences between the joints, movements, and especially their interaction, are necessary to be taken into account. Moreover, a bias between the methods should be noted. The potential for each presented symmetry index to identify pathological movements or track a rehabilitation process was shown but has to be proven in further research. Trial registration: DRKS00025878.

scholarly journals Studying the impact of different body positioning, squatting, and unipodal flexion on perfusion in the lower limb – an exploratory approach complemented with optical spectroscopy (TiVi)

2020 ◽  
Vol 17 (2) ◽  
pp. 1-10
Author(s):  
Sergio Nuno ◽  
Margarida Florindo ◽  
Henrique Silva ◽  
Luis Monteiro Rodrigues
Keyword(s):  
Lower Limb ◽  
Polarized Light ◽  
Contralateral Limb ◽  
Doppler Flowmetry ◽  
Non Invasive ◽  
Functional Dynamics ◽  
Exploratory Approach ◽  
Lower Limb Movement ◽  
The Impact ◽  
Healthy Participants

Body posture and movement seem to be responsible for multiple variations of microcirculation in the foot, although difficulties associated with measurement during movement have limited their characterization. This pilot study sought to explore a new non-invasive instrument based on polarized light spectroscopy – the TiVi system, under orthostatic and dynamic conditions. Five healthy participants (duly informed, 26.0 ± 6.5 years of age) of both genders were selected. The protocol involved sequential posture changes (orthostatic variation) and dynamic movements (squatting and unipodal flexion). Perfusion variations were evaluated in both feet by laser-Doppler flowmetry (LDF) and polarized spectroscopy (TiVi). Both systems revealed the same type of modification of these flow-related variables. The most pronounced changes were obtained with exercise, especially with squatting, which caused a marked increase in foot perfusion. Less dramatic but in the same direction, the increased perfusion with unipodal flexion was also observed in the contralateral limb. This study confirmed the interest in using the TiVi system in these domains, as well as the appropriateness of this experimental design to look deeper into the impact of lower limb movement on the functional dynamics of the foot.

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